[src/trunk]: src/sys/lib/libsa Save some space

[dsl <dsl%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/b5037364a28c
branches:  trunk
changeset: 542557:b5037364a28c
user:      dsl <dsl%NetBSD.org@localhost>
date:      Sat Feb 01 14:53:38 2003 +0000

description:
Save some space
(agreed by christos)

diffstat:

 sys/lib/libsa/strerror.c |  76 ++++++++++++++++++++---------------------------
 1 files changed, 33 insertions(+), 43 deletions(-)

diffs (90 lines):

diff -r f1b7c11ba62e -r b5037364a28c sys/lib/libsa/strerror.c
--- a/sys/lib/libsa/strerror.c  Sat Feb 01 14:52:13 2003 +0000
+++ b/sys/lib/libsa/strerror.c  Sat Feb 01 14:53:38 2003 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: strerror.c,v 1.13 2002/02/17 23:18:32 thorpej Exp $    */
+/*     $NetBSD: strerror.c,v 1.14 2003/02/01 14:53:38 dsl Exp $        */
 
 /*-
  * Copyright (c) 1993
@@ -37,48 +37,38 @@
 #include "saerrno.h"
 #include "stand.h"
 
-char *
-strerror(err)
-       int err;
-{
-static char ebuf[64];
+static const struct mi {
+       int     errno;
+       char    *msg;
+} errlist[] = {
+       { EADAPT,       "bad adaptor number" },
+       { ECTLR,        "bad controller number" },
+       { EUNIT,        "bad drive number" },
+       { EPART,        "bad partition" },
+       { ERDLAB,       "can't read disk label" },
+       { EUNLAB,       "unlabeled" },
+       { ENXIO,        "Device not configured" },
+       { EPERM,        "Operation not permitted" },
+       { ENOENT,       "No such file or directory" },
+       { ESTALE,       "Stale NFS file handle" },
+       { EFTYPE,       "Inappropriate file type or format" },
+       { ENOEXEC,      "Exec format error" },
+       { EIO,          "Input/output error" },
+       { EINVAL,       "Invalid argument" },
+       { ENOTDIR,      "Not a directory" },
+       { EOFFSET,      "invalid file offset" },
+       { 0, 0 } };
 
-       switch (err) {
-       case EADAPT:
-               return "bad adaptor number";
-       case ECTLR:
-               return "bad controller number";
-       case EUNIT:
-               return "bad drive number";
-       case EPART:
-               return "bad partition";
-       case ERDLAB:
-               return "can't read disk label";
-       case EUNLAB:
-               return "unlabeled";
-       case ENXIO:
-               return "Device not configured";
-       case EPERM:
-               return "Operation not permitted";
-       case ENOENT:
-               return "No such file or directory";
-       case ESTALE:
-               return "Stale NFS file handle";
-       case EFTYPE:
-               return "Inappropriate file type or format";
-       case ENOEXEC:
-               return "Exec format error";
-       case EIO:
-               return "Input/output error";
-       case EINVAL:
-               return "Invalid argument";
-       case ENOTDIR:
-               return "Not a directory";
-       case EOFFSET:
-               return "invalid file offset";
+char *
+strerror(int err)
+{
+       static  char ebuf[36];
+       const struct mi *mi;
 
-       default:
-               sprintf(ebuf, "Unknown error: code %d", err);
-               return ebuf;
-       }
+       for (mi = errlist; mi->msg; mi++)
+               if (mi->errno == err)
+                       return mi->msg;
+
+       snprintf(ebuf, sizeof ebuf, "Unknown error: code %d", err);
+       return ebuf;
 }